Numerical and Experimental Study of Strain Rate Effects in Laser Forming
Author:
Li Wenchuan1, Yao Y. Lawrence1
Affiliation:
1. Department of Mechanical Engineering, Columbia University, New York, NY 10027
Abstract
Experimental investigation and numerical simulation of the influence of the strain rate in laser forming are presented. To isolate and effectively study the strain rate effects, which are temperature dependent, a “constant peak temperature” method is developed with the aid of numerical modeling and solution. Under the condition of the constant peak temperature, the effects of strain rate on forming efficiency, residual stress and hardness of the formed parts are studied both experimentally and numerically. In the numerical model, the temperature dependence and strain-rate dependence of the flow stress and other material properties are considered. The simulation results are consistent with the experimental observations. [S1087-1357(00)01004-2]
Publisher
ASME International
Subject
Industrial and Manufacturing Engineering,Computer Science Applications,Mechanical Engineering,Control and Systems Engineering
Reference17 articles.
1. Magee, J., Watkins, K. G., and Steen, W. M., 1998, “Advances in laser forming,” J. Laser Appl., 10, pp. 235–246. 2. Vollertsen, F., 1994, “Mechanism and models for laser forming,” Laser Assisted Net Shape Engineering, Proceedings of the LANE’94, Vol. 1, pp. 345–360. 3. Arnet, H., and Vollertsen, F., 1995, “Extending laser bending for the generation of convex shapes,” IMechE Part B: J. Eng. Manufact., 209, pp. 433–442. 4. Vollertsen, F., Geiger, M., and Li, W. M., 1993, “FDM and FEM simulation of laser forming a comparative study,” Adv. Technol. Plasticity, 3, pp. 1793–1798. 5. Hsiao, Y.-C., Shimizu, H., Firth, L., Maher, W., and Masubuchi, K., 1997, “Finite element modeling of laser forming,” Proc. ICALEO ’97, Section A, pp. 31–40.
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